package fourfaith.com.ff_sl21_app.weather;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;


/**
 * 阳历阴历
 * @author administrator
 *
 */
public class CalendarTime {
	private int year;
	private int month;
	private int day;
	private boolean leap;
	final static String chineseNumber[] = {"一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"};
	static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy年MM月dd日");
	final static long[] lunarInfo = new long[]
	{0x04bd8, 0x04ae0, 0x0a570, 0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2,
	0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0, 0x0ada2, 0x095b0, 0x14977,
	0x04970, 0x0a4b0, 0x0b4b5, 0x06a50, 0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970,
	0x06566, 0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0, 0x1c8d7, 0x0c950,
	0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4, 0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557,
	0x06ca0, 0x0b550, 0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950, 0x06aa0,
	0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260, 0x0f263, 0x0d950, 0x05b57, 0x056a0,
	0x096d0, 0x04dd5, 0x04ad0, 0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6,
	0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40, 0x0af46, 0x0ab60, 0x09570,
	0x04af5, 0x04970, 0x064b0, 0x074a3, 0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0,
	0x0c960, 0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0, 0x092d0, 0x0cab5,
	0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9, 0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930,
	0x07954, 0x06aa0, 0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65, 0x0d530,
	0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0, 0x1d0b6, 0x0d250, 0x0d520, 0x0dd45,
	0x0b5a0, 0x056d0, 0x055b2, 0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0};

	//====== 传回农历 y年的总天数
	final private static int yearDays(int y) {
	int i, sum = 348;
	for (i = 0x8000; i > 0x8; i >>= 1) {
	if ((lunarInfo[y - 1900] & i) != 0) sum += 1;
	}
	return (sum + leapDays(y));
	}

	//====== 传回农历 y年闰月的天数
	final private static int leapDays(int y) {
	if (leapMonth(y) != 0) {
	if ((lunarInfo[y - 1900] & 0x10000) != 0)
	return 30;
	else
	return 29;
	} else
	return 0;
	}

	//====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0
	final private static int leapMonth(int y) {
	return (int) (lunarInfo[y - 1900] & 0xf);
	}

	//====== 传回农历 y年m月的总天数
	final private static int monthDays(int y, int m) {
	if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)
	return 29;
	else
	return 30;
	}

	//====== 传回农历 y年的生肖
	final public String animalsYear() {
	final String[] Animals = new String[]{"鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"};
	return Animals[(year - 4) % 12];
	}

	//====== 传入 月日的offset 传回干支, 0=甲子
	final private static String cyclicalm(int num) {
	final String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"};
	final String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"};
	return (Gan[num % 10] + Zhi[num % 12]);
	}

	//====== 传入 offset 传回干支, 0=甲子
	final public String cyclical() {
	int num = year - 1900 + 36;
	return (cyclicalm(num));
	}
	public String getLunarMonthString() {
	// TODO Auto-generated method stub
	return null;
	}

	@SuppressWarnings("unused")
	public CalendarTime(Calendar cal) {
	    int yearCyl, monCyl, dayCyl;
		int leapMonth = 0;
		Date baseDate = null;
		try {
		baseDate = chineseDateFormat.parse("1900年1月31日");
		} catch (ParseException e) {
		e.printStackTrace(); //To change body of catch statement use Options | File Templates.
		}
	
		//求出和1900年1月31日相差的天数
		int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);
		dayCyl = offset + 40;
		monCyl = 14;
	
		//用offset减去每农历年的天数
		// 计算当天是农历第几天
		//i最终结果是农历的年份
		//offset是当年的第几天
		int iYear, daysOfYear = 0;
		for (iYear = 1900; iYear < 2050 && offset > 0; iYear++) {
		daysOfYear = yearDays(iYear);
		offset -= daysOfYear;
		monCyl += 12;
		}
		if (offset < 0) {
		offset += daysOfYear;
		iYear--;
		monCyl -= 12;
		}
		//农历年份
		year = iYear;
	
		yearCyl = iYear - 1864;
		leapMonth = leapMonth(iYear); //闰哪个月,1-12
		leap = false;
	
		//用当年的天数offset,逐个减去每月（农历）的天数，求出当天是本月的第几天
		int iMonth, daysOfMonth = 0;
		for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) {
		//闰月
		if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap) {
		--iMonth;
		leap = true;
		daysOfMonth = leapDays(year);
		} else
		daysOfMonth = monthDays(year, iMonth);
	
		offset -= daysOfMonth;
		//解除闰月
		if (leap && iMonth == (leapMonth + 1)) leap = false;
		if (!leap) monCyl++;
		}
		//offset为0时，并且刚才计算的月份是闰月，要校正
		if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) {
		if (leap) {
		leap = false;
		} else {
		leap = true;
		--iMonth;
		--monCyl;
		}
		}
		//offset小于0时，也要校正
		if (offset < 0) {
		offset += daysOfMonth;
		--iMonth;
		--monCyl;
		}
		month = iMonth;
		day = offset + 1;
	}

	public static String getChinaDayString(int day) {
	String chineseTen[] = {"初", "十", "廿", "三"};
	int n = day % 10 == 0 ? 9 : day % 10 - 1;
	if (day > 30)
	return "";
	if (day == 10)
	return "初十";
	else
	return chineseTen[day / 10] + chineseNumber[n];
	}

	public String toString() {
	   return year + "年" + (leap ? "闰" : "") + chineseNumber[month - 1] + "月" + getChinaDayString(day);
	}
}
